Electric-railway system



(No Model.)

P. S. PERRIN. ELECTRIC RAILWAY SYSTEM.

Patented-July 4, 1-893.

WITNEE 5E5 WMENWB QW (No Model.) 3 Sheets-Sheet 2.

F. SLPERRIN. BLEGTRIO RAILWAY SYSTEM.

N0.5O0,943. PatentedJuly 4,1893.

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\A/ILTNESEESL C l 53T I r (No Model.) 3 Sheets-Sheet 3'.

P. s, PERRIN'. ELEGTRIU RAILWAY SYSTEM.

No. 500,943. Patented July 4, 1893.

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UNITE STATES ATENT OFFICE.

FREDERICK S. PERRIN, OF LYNN, MASSACHUSETTS.

ELECTRIC-RAILWAY SYSTEM.

SPECIFICATION forming part of Letters Patent No. 500,943, dated July 4,1893.

Application filed April 2, 1892. Serial No. 427,570. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK S. PERRIN, of Lynn, in the county of Essexand State of Massachusetts, have invented certain new and usefulImprovements in Electric-Railway Systems, of which the following is aspecification.

My invention relates to electric railway systems, and more particularlyto that class in which the current derived from acentralstation orstorage battery is sent to the motors on the vehicle from a conductorplaced underground.

The object of this invention is to dispose the running gear, motors, andall other, so to speak, vital parts under ground ina suitable conduit orconduits, to provide suitable supports adapted to pass through narrowslots in said conduits and sustain the weight of the car, and to providedurable and effective means for closing said slots before and after thepassage of the car.

To these ends the invention consists in the improvements which I willnow proceed to describe and claim.

Of the accompanying drawings forming a part of this specification,Figure 1 is a view in perspective of a car with a portion of theconduits broken away to show the arrangement of the running gear and itsattendant parts. Fig. 2 is a side elevation, the conduits also brokenaway, showing the conductor and the frames for opening and closing theshutter. Fig. 3 is an end View, partly in vertical section, showingshutters, frames, and running contact. Fig. 4 shows an arrangementinvertical section of two subways having two trucks of four wheels each.Fig. 5 is a perspective detail of two shutters. Fig. 6 is an end View ofthe same showing, in dotted lines, the shutter open. Fig. 7 is an insideview of one shutter, showing pivot and stop therefor. Fig. 8 is a topview of the shutter opening frames. Fig. 9 is a side view of the same.

The same letters of reference indicate the same parts in all of thefigures.

The car A is provided with any suitable number of uprights or supportsat extending downwardly through the slot a and into the conduit B, wherethey are secured firmly to truck frames a upon which the motor 0 ismounted in any suitable manner, said uprights and their connectionscollectively formin g a narrow elongated frame rigidly attached to andprojecting downwardlyfrom the car and adapted both to run in a narrowslot extending lengthwise of the track, and to support the entire weightof the car, there being two of said frames attached to each car.

I may connect the moi or with the wheels by any desirable method,preferably by extending the armature shaft in both directlons andsecuring thereon spindles adapted to mesh with bevel gears on the innersurface of the wheels. I may, however, utilize any approved form ofmotorand gearing. conductor c (Fig. 3) is suitably supported in theconduit and has a trolley D to convey the current to the motor.

Near the top of the conduit (Fig. 3) are braces or hangers 6 havingstops or lugs e thereon. Pivoted at e in these braces or hangers are twoshutters or jaws E, the pivoted points thereof being near the lowerextremities of the shutters or jaws, so that when they are closed (Fig.5) the greater weight above pin P? will have a tendency to close theshutters.

On the uprights a are suitably secured frames F F F (Figs. 8 and 9), oneabovethe other, and so arranged that the upper frame will engage theinterior of shutters E above the pins c and the lower frame will engagethe shutters below pins e These frames have beveled or wedge-shapedends, as shown, and it will be observed that said frames are slightlywider than the space between the pins 6 The operation of these shuttersand frames will now be readily understood. As the car moves, forinstance, in the direction of arrow (Fig. 8), frame F will pass betweenthe arms of shutters E below the pins e but, as said shutters arealready closed, this frame will not act upon the same. However, whenframeF advances,-point f will enter above pins e and force said shuttersapart against stops 6 where they will rest until frame F advances, and,acting against the portion be neath pins e serve to close said shutters.

From the foregoing it will be seen that manifold advantages accrue fromthe construction shown. The entire running gear being underground, alldanger of encountering obstacles on the track will be obviated,

aking it impossible to run over persons, or to throw the car or cars on:the track by any obstruction. There is no open slot into which Wheels ofvehicles can fall. No snow or rain can penetrate to impair theefficiency of the running contact; and the motors are shielded entirelyfrom the elements, having the additional advantage of deadening thenoise caused by the motors. tage of protruding tracks in busy streets isovercome.

I claim 1. In an electric railway system, the combination with a car, oftwo narrow elongated frames rigidly attached to the car and projectingdownwardly therefrom, two conduits below the surface of the ground; arail in each: conduit, a wheeled truck in each conduit andsupportingthecar through the saidframes, and an electric'motor carried by each ofsaid trucks, substantially as and for the purpose set forth.

2. The combination with an underground conduit, having a narrowlongitudinal slot, of two shutters pivoted below said slot, one on eachside thereof, each of said shutters hav=- ing an arm projecting belowthe pivotal'point, as set forth.

3. In an electric railway system, the com-- bination with a car and anundergroundconduit having a narrow longitudinal slot, of 1 running gearlocated within the conduit and connected with the car, shutters pivotedwithin said conduit and having extensions below their pivotal points andmeans connected with the car for operating upon the shutters above orbelow their pivotal points SAML. B. THoMPsoN:

to open and close them, as set forth.

The disadvan- 4;. In. an electric railway system, a-zcar supported uponuprights extending through slots in the road bed and fixed to suitablerunning gear below the slots, pointed frames secured to said uprightsand shutters or aws below the, slot adapted to be opened and closed bysaid pointed frames, substantially as described.

5... In an electric railway system, a conduit,

a slot therein, shutters or jaws pivoted within said conduit and adaptedto open and close ,said slot, a car, upright supports therefor, runninggear upon which said uprights are secured, a motor on said running gear,horizontally disposed wedge-shaped frames, one above the other, adaptedto open and close said pointed shutters or jaws in the passage of" saidcar, said running gear, motor, frames, and shutters or jaws-beingi'nclose'd by said conduit, substantially'as described.

6.- In an electric. railwaysystem, the combination of anun'derground'con'duit and shutters or jaws formedout curved arms whichare pivoted to fixed supportsat points below the shutters, portionsofsaid arms projecting i above and portions below the pivots, anoperating device located above the pivots and {another operating devicebelow the pivots, whereby the shutters may be opened and closed as setforth.

In testimony whereof I have signed" my name to this specification, inthe'presence of 3 two subscribing witnesses, this 26th day of iMarch, A.D; 1892; FREDERICK S. PERRIN.

Witnesses:

has 0. DE'LoNG,

